V34a PRO- Contacta Dual Output Hearing Loop Driver
V34a PROV34a PRO- Contacta Dual Output Hearing Loop Driver
- 763 412 7282
- +86 010 82830816
V34a PRO Overview
It has a Class-D amplifier output stage and an audio subsystem built around advanced digital systems including an ARM Cortex processor and dual DSPs. Combined with a
powerful CPU to ensure peak performance, the V34a PRO provides self-monitoring and email alerts, remote setup over local area networks, guided hearing loop setup to
make installation simple, and excellent speech and music reproduction.
Features
• Inbuilt guided hearing loop setup utilising an integral test signal generator
• Intelligent self-monitoring system supplies status emails on changes to driver functions
• Dual-DSP controlled automatic gain control and high frequency compensation for metal loss
• Class-D amplifier output stage capable of delivering 12ARMS @ >34VRMS
• Highly-rated custom heat-sinks and active cooling
• Integrated universal switch mode power supplies provide ultra-efficient power utilisation (up to 90% efficient)
• Constant current output stage
• Adjustable audio time delay for large distance audio syncing
• Intuitive and sleek user interface on a full colour LCD
• Adjust both drive and loop output levels using an embedded LAN service, minimizing installation time
• Settings/profiles saved to a USB storage device
• Continuous self-testing
• Integrated protection circuits with temperature, voltage, short circuit and DC detection
• Full width 1U 19” rack mount
Applications
Suitable for large facilities and venues
such as:
• Theatres
• Concert halls
• Places of worship
• Sports arenas
• Conference facilities
Voltage and Current
• 2 x 34 VRMS @ 12A RMS
V34a PRO Specification
Physical Data
Dimensions | Height-44mm(1.73") Width-433mm(17.04”) Depth-301mm(11.85”) |
Weight | Unit-4.5kg(9.9Lbs) Boxed Kit-5.5kg(12.1bs) |
Construction | Mild Steel |
Finish | Black Powder Coated |
Technical Data
Audio Inputs | 2XLine/microphone inputs (switchable)XLR or Euroblock | Line (optimised for-10dBV to OdBv) |
Microphone(12V phantom power via 680Q optimised for levels above -45dBv) | ||
Loop Outputs | Outputs Voltage | 2×34Vrms*(96.1V pk-pk) |
Output Current | 2×12Arms @1KHz*(33.94A)pk-pk>1200 seconds(20 minutes) | |
Loop Connector | 2×NL4 | |
Audio System | Frequency Response | 100Hz to 9KHz |
Distortion | THD<1%(-40dB)fullcurrent both channels driven | |
Automatic Gain Control | DSP controlled,peak detecting | |
High Frequency Compensation | 7 DSP controlled,optimised stages | |
Audio Signal Delay | 10ms to 40ms | |
Display | Backlit TFT 480×128 pixels(95mm×25mm) | |
Control | Single Rotary Push Control | |
Mains Input | Voltage | 100V-120V/200V-240VAC(universal auto switching with PFC) |
Frequency | 50Hz/60Hz | |
Connection | IEC | |
Cooling | Custom heatsink with temperature-controlled fan | |
*Z=2.839@1.6KHz(250.63uH +1.2942)equivalent to 192.85m of 25mm flat copper cable.
Driver Area Coverage
Area | |||
1:1 | 1:2 | 1:3 | |
Phased array (no metal loss) | 1521.00m² | 1740.50m² | 1680.33m² |
Phased array(medium metal loss) | 676.00m² | 840.50m² | 867.00m² |
All phased array loop areas calculated under the following conditions: Area at maximum driver current without voltage clipping at 1.6KHz * 3 metre segment width * calculated with 25mm x 0.1mm flat copper tape * loop cable installed on floor * listening plane 1.2m * medium metal loss = 6dB
Rear Connections
Warranty: 1 year
V34a PRO Warranty
 | Low Price Guarantee |  | Quality Assurance |
 | 100% Money Back Guarantee |  | Commodity Refund Guarantee |
 | Diversified and Flexible Transportation Services |  | Standard Policy |
